Unreal Engine Issues
Unreal Engine Issues
Editable FBox properties are not saved
UE - Core - Systems - Feb 7, 2023FBox properties in the editor are not being saved. This appears to be a regression caused by CL# 21566516 that was missed due to there being no editable box types in the Epic codebase. ...
Landscape Layer Painting issues when painting near the edge of delete Landscape Proxies.
UE - Graphics Tools - Terrain - Jul 19, 2024It appears that the landscape painting tool is not correctly taking into account deleted landscape sections, resulting in artifacts inside of the weight textures. ...
If you open IsDataOnly 's BluePrint in the Blueprint editor, the contents of the inherited property may be different.
UE - Gameplay - Blueprint Editor - Apr 2, 2018Normal voice chat does not activate the microphone when Mic Threshold is zero
UE - Audio - Aug 11, 2020Voice chat does not work when speaking into the microphone with a normal voice and a Mic Threshold of 0. We have to blow into the microphone or speak loudly for voice chat to work. ...
Nanite mesh shadows not updating when CSMCaching enabled
UE - Platform - Mobile - May 25, 2024A Nanite primitive casting a CSM shadow on another Nanite primitive with "Cast Shadows" disabled, will have it's shadow disappear completely when r.Shadow.CSMCaching = 1. ...
Crash when changing an actor's variable type from vector to transform
UE - Framework - LWC - Oct 25, 2022It looks like this is some fallout from CL 19405683. If we change a variable from vector to transform, it'll pass this check:if(Tag.StructName == NAME_Transform) { Struct->SerializeTaggedProp ...
Material Editor Crash on Parameter name that is shared in Material function
UE - Rendering - Architecture - Materials - Aug 30, 2023UE5.4 Preview 1 produces rendering artifacts on Landscape with World Position Offset
UE - Graphics Tools - Terrain - Landscape - Mar 28, 2024A material on a landscape with WPO will cause major ghosting, even if that WPO is a dynamic {0,0,0} ,such as from a black texture. ...
Undo and ConstructionScript break the AttachChildren array
UE - Gameplay - Components - Nov 14, 2019Undo fills AttachChildren array with null by the undo serializer. After that, a construction script tries to remove child components from parent component's AttachChildren but it can't find its poi ...
[AI] SmartObjectPersistentCollection produces errors during Map Validation
zComponent - Archive - Nov 18, 2025SmartObjectPersistentCollection in 5.6 and later now give errors when the map validator runs due to referencing spatially loaded actors. This was working per licensee in 5.5. There was a change from ...